103553447 has 2 divisors, whose sum is σ = 103553448. Its totient is φ = 103553446.

The previous prime is 103553407. The next prime is 103553449. The reversal of 103553447 is 744355301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103553447 - 2¹² = 103549351 is a prime.

It is a super-3 number, since 3×103553447³ (a number of 25 digits) contains 333 as substring.

Together with 103553449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103553449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51776723 + 51776724.

It is an arithmetic number, because the mean of its divisors is an integer number (51776724).

Almost surely, 2^103553447 is an apocalyptic number.

103553447 is a deficient number, since it is larger than the sum of its proper divisors (1).

103553447 is an equidigital number, since it uses as much as digits as its factorization.

103553447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 103553447 is about 10176.1214124046. The cubic root of 103553447 is about 469.5928978197.

The spelling of 103553447 in words is "one hundred three million, five hundred fifty-three thousand, four hundred forty-seven".